SWDEV-514959 - Fix memory leaks in streamperthread tests (#14)

Change-Id: I7b133d422f675d45050d7f724d632fa2dc997baf

catch/unit/streamperthread/hipStreamPerThread_Basic.cc

@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+Copyright (c) 2025 Advanced Micro Devices, Inc. All rights reserved.
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
@@ -135,4 +135,8 @@ TEST_CASE("Unit_hipStreamPerThread_MemcpyAsync") {
   for (unsigned int i = 0; i < ele_size; ++i) {
     REQUIRE(A_h[i] == 123);
   }
-}
+
+  // Clean-up
+  HIP_CHECK(hipHostFree(A_h));
+  HIP_CHECK(hipFree(A_d));
+}